242218 has 8 divisors (see below), whose sum is σ = 366048. Its totient is φ = 120204.

The previous prime is 242201. The next prime is 242227. The reversal of 242218 is 812242.

242218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 242195 and 242204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46 + ... + 697.

It is an arithmetic number, because the mean of its divisors is an integer number (45756).

2²⁴²²¹⁸ is an apocalyptic number.

242218 is a deficient number, since it is larger than the sum of its proper divisors (123830).

242218 is a wasteful number, since it uses less digits than its factorization.

242218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908.

The product of its digits is 256, while the sum is 19.

The square root of 242218 is about 492.1564791812. The cubic root of 242218 is about 62.3355034339.

The spelling of 242218 in words is "two hundred forty-two thousand, two hundred eighteen".